Oil pump



y H. P. JESPERSON oIL PUMP' Filed Dec. 26. 1925 3.0;y pump, and to ro Patented rApr. 12, I1927.

'UNITED 'STA u Lmgw HANS P. JrsPPznson,l or sioux CITY, 'Iowa orL PUMP.

vj Appiicaudnmeu'Decemberrz'c, 1925*. seriaizNo. 77,719.-` I

expensive construction, and which is es pecially adapted to be attached yto. aparticular type yofgautomobile engine in common use. vz

Moreparticularly, it islmy'object to` provide in combination with' an .engine having a v.cylinder block'provided withanintegral timegear shell, fincluding lateral wallv portions inclined4 toward each other, and a flange'` forming, together with said ,wall .por.. tions andL thecy'linder. block, a'chan'n'el; af vpump yhavingone side engaged in said. chan-A nel .andagainst said walls, and 'its-other side attachedtothecylinder block in such a vmanner .asf to maintain the pump' ,-in' engagementfwith vrsaid channel, the' channel aiding to .form a rigidsuppo'rt orthe pum ,v and further to position ythe pump accurate y relativefto .the crankshaft. of the; engine from which the pump is'driven bysuitable. gearing mechanism.

Another object of,Y the invention is to provideinfcombination with such an engine, a' pump so rmountedrelative tothe engine that either a gear driveor a dri-ve from the fan belt may .be used to supply power tothesame direction. .n r .Y l Anotherobject is to provide means for adjusting.thepressure in the discharge pipe from the` pump, .whereby an oil gauge may indicate the flow ofoilgf..

With thesev and other/objects in view, my invention consists4 in the construction, v,arrmgementv and combination of lthe various'l i bel connected with said ldischarge Zpipe.. to`

. part'sofmy device, whereby theobjects contemplated are attained, as hereinafter more fully. setforth, pointed outin myclaims', and r illustrated in the accompanying drawings, in which:

Figlie a perspective View ,of` an engine to whichthe pump 'is attached. y Figp2 ,'s av .transversey sectional View v through ,theforward end of the vcrank'case UIAy of the engine, illustrating my invention attached, parts beingbroken away to better illustratethe construction. u A f Fig. 3is a view similarytoFig. 2, illus# trating analternative drive for the pump. n Fig. 4vr is a vhorizontal sectional view rthroughthe cylinder blockfillustrating the tate it in .either case 'in the-v crank case and the pump and its conne/lotionsr t i in plan.

Fig. 5 isa detail sectional view, vtaken'. on

thel-ine 5.-5 o'Fig. l. l

\ Fig; t6 is adetail sectional view, takenI on the line 6-*6'o-f Fig.` 3,- and i 'f Fig. 7 'is a detail sectional View, ,ta-ken" on the ,line7-7 of Fig. 4.f u n i I have usedithe` reference character loto indicate generallyV the crank case of a Ford automobile.

cap screws, 22,' to the lange, 23,'of vthertime gear shell, which includes a substantially 'res PATENT-f o Price! f 1f 65 The side flanges, ll, .of the 4crank case co-act with flanges, l2, on lthe;` cylinder block, 13, in order that thetwo may. be secured together by means of" bolts,f l4." y The cylinder front cover,`,21', is secured byvv vertical portion, 24, of the lateral wall which 'p y surrounds the large time gear and adownwardly and outwardly inclined. portion, 25 curved to fit the 'small time gear.

' fA vertical boss,"26,having.` a-''f-orward. l

transverse face is formed* integrally with' they" cylinder block, 13,r and forms, together with thewall portions, 24 and25, and theflange,

23, achannel;

It will be unde'rstoodfthat the parts here;v

tofore described are'of theordinary'Ford' vengine construction.

VMy pump comprises a casingf, having a .lower 'semi-cylindrical side, '127, verticali sides, 28, and an upper side, 29, in which are i threaded .a nipple 30, and a T connection, 31v

respectively, lwhich form' connecting means '90 whichgwill be hereinafter" deiy for' the intake andrvdischarge poil' tubes, y ref spectively, Y scribedf u p The inner operating'parts of the pump formy no lpart of the present invention, 'and have therefore not beenillustrated. These are enclosed by a plate, 32, which is secured to the casing, A, means of screws',A 33.

(See Fig-45)# The pumpv is secured in place,'nrelative to the engineyby,inserting itin a plane 'transf verse to the engine, with the side, 28, en' gaged againstv the wall, 2 4, and the periph-` ery of the curved.. portion, 27; engaged against the' wall, 25,v they pumpfbeing of such thickness as to .snugly fit between the forward face ofthe boss, 26, and the flange, 23. (See Fig'. 4.) r u y I lThe casing 'has'a'fooh r34, `which is pro# vided with a threaded "opening, 35,.shown in dotted lines in Fig. 2.` conicaldepres'- sion, 36, is formed in the casing, A, in position to receive the pointed end of a screw, 36a, inserted in place of the ordinary screw, 22, through the right side opening provided for itin the cover, 21. is so located that pressure ot the screw, 36, will draw the casing, A, laterally in snug engagement with the wall, 24. (See Figs. 4 and 7.) A

The foot, 34, is of sucli length that after the screw, 36a, has been tightened as above, a screw, 34a, inserted in the opening for one of the bolts, 14, will draw it down into contact with the boss on the iange, 12, surrounding said opening and thereby draw the curved side, 27, 'of the casing, A, against the wall, 27.

The bolt, 34a, prevents any lateral movement of the casing on one side, the boss, 26, and bolt, 36a, on the other. The casing is thus held securely against vibration relative to ythe cylinder block, and yet may be applied or removed in a moments time. Thus the pump forms 'a rigid part of the engine when connected thereto.

The pump has an operating shaft, 37, which extends Jorwardly through aY packing gland, 38, to a position substantially Hush with the rear tace of the fan drive pulley, 39. yThe shaft is so positioned, as will be noted from an inspection of Figs. 2 and 3, that it may be either driven from a gear, 40, secured to the. rear face of the pulley, 39, and meshing with the gear, 41, which it carries, or by the ordinary an belt, 42, engaging tlie'left side of a pulley, 43whichv it is adapted to also receive instead ot the gear, 41. y rIhe ratio .between the diameters of the pulleys, 43 and 39, is the same as the ratio between the pitch diameters of the gears, 41 and 40, respectively. I find that with the pump positioned as described, and the pulley, 43, of such diameter as just mentioned, the said pulley will intersect the normal path ot the belt, 42, to such an extent as to gain sufficient traction therefrom for the proper driving of the pump.

The intake pipe, 44, is connected by a pack nut, 45, to the nipple, 30, and by means of an elbow, 46, to the ordinary drain plug, 16, in the flywheel housing, 15. The plug is tapped and threaded to receive the elbow as shown in Fig. 5. vAn inverted cupshaped screen 17, is received in the opening in the plug above the elbow, 46, and strains the oil of impurities.

A discharge pipe, 47, is connected by means of a pack nut, 48, to one arm of the T connection, 31, and by means of a pack nut, 49, to a nipple, 50, which is threaded into a boss on the cover, 21, which has an opening leading to the crank case interior. (See Fig. 3.) y

yDue to the fact that the oil discharge rIhe depression, 36,

opening is unobstructed and ot rather large bore, it is necessary to provide a regulating device for building up the pressure in the discharge connection, 31, in order that the gauge, 5l, which is connected to the T, 31, by means of a tube, 52, may successfully indicate whether or ,not the pump is operating. For this purpose an opening is simply bored in the discharge arm of the connection, 31, and threaded to receive a needle valve,53, which serves to diminish or increase the cross-sectional area of the channel through the discharge arm of the connection, 31. y

The gauge, 5l, may be conveniently located on the dash of the car, and is merely indicated in Fig. 2 to show its use,themount ing forming no-partoi. the'invention.

My invention solves the problem oi" mounting an oil pump on theFord engine with a minimum of trouble and expense', and is so arranged, relative to the engine,

that the problem of driving it is very sim ply and eectively solved. l,

Some changes maybe made in the construction and arrangementA of thev parts of my invention without departing fromr the real spirit and purpose of my invention, and

it is my intention to cover by my claims any modied forms of structure or use of mechanical I claim as my invention: vl. In combination with'an automoble engine having a cylinder block, a 'crank case having` an opening to receive al forward'l crank case bolt for securing said blockand crank case together, a cylinderwront cover having an opening adapted to receive an intermediate right cap screw for securing said cylinder cover to the cylinder block, the cylinder'block'having a 'time gear shell equivalentsl whichl may be reasonably included in their scope.

ioo

including substantially vertical and downwardly and outwardly inclined portions; lan

oil pump disposedin engagement with saidi portions, lmeans securing the pump in such engagement, said means including afscrew engaging the pump through said cover opening, andv a screw extending through said' crank case opening and into the pump its free side for securing it to the block,

2. In combination with an automobile engine having a cylinder block provided-withsecuring the pump against said walls.

3. In combination with an automobile enl gine having a cylinder block provided with an integral time gear shell having a flange' A Ui and having substantially vertical7 and downwardly and outwardly inclined Wall portions forming, together with the cylinder block, a channel, said engine having'a crank shaft extending forwardly of said shell; an oil pump having a side received in said channel and engaged Aagainst, said walls, means for maintaining the pumpin engagement with said walls, and lgearing connecting said pump with said fandrive pulley.

4. In combination with van automobile en-lgine having a cylinder block, a crank case having an openingA to receive a forward crank case bolt for securing said block and crank case together,` a cylinder front cover having ,anopening adapted tofreceivek an intermediate right capy screwffor securingr` `yincluding substantially vertical'and downwardly and outwardly inclined portions; an oil pump disposed in" engagement with said portions, means securing the pumpin such engagement, said means includinga screw engaging the pump through said-Cover opening, and means for-securing thefree side of the pump to the block.

Signedat Sioux City, in the county of Voodbury/and Stateof Iowa, this 19th day of Decemberv7 1925.l

` `HANS P. Jasimnson.` 

